This stone once marked the boundaries of Liverpool's medieval markets.

Six neolithic sandstone boulders remaining from a dolmen.

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

How did a lighthouse wind up in the middle of this landlocked German city?

The body of at least one victim of a construction accident was left behind in the collapsed pylon, buried under tons of concrete.

An elegant chandelier hangs over this ancient sewer chamber, now open for concerts and public tours.

Hamburgers are intensely proud of their tunnel beneath the river.

This amazing oasis of art and plants is hidden on the outskirts of Marrakesh.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A peculiar samurai statue overlooks the center of Brno.

Of all the houses that grace this neighborhood, only one is a testament to surreal architecture.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

This beautifully preserved Ottoman house is steeped in history.

A naturally beautiful, seemingly bottomless deep blue spring.

The ghost town where the villagers refuse to leave.

Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

An extraordinary collection of 18th century anatomical waxworks.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Where the lovelorn find a home for their sentimental keepsakes.

A memorial to the tens of thousands of Irish who fled to North America during the Great Famine.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.